package operation;

import book.Book;
import book.BookList;

import java.util.Scanner;

public class AddOperation implements IOperation{
    public void work(BookList bookList){
        System.out.println("新增书籍");

        Scanner scanner = new Scanner(System.in);

        System.out.println("请输入书名：");
        String name = scanner.nextLine();
        System.out.println("请输入作者");
        String author = scanner.nextLine();
        System.out.println("请输入价格");
        int price = scanner.nextInt();

        scanner.nextLine();//scanner.nextLine()上一行如果是nextInt，就会把上一行的空格读入，所以要多加一个空行

        System.out.println("请输入类型");
        String type = scanner.nextLine();

        Book book = new Book(name,author,price,type);
        int currentSize = bookList.getUsedSize();

        for (int i = 0; i < currentSize; i++) {
            Book book1 = bookList.getBooks(i);
            if (book1.getName().equals(name)){
                System.out.println("已经有这本书了，不需添加");
                return;
            }

        }

        //默认放在前三本的后面(第四)
        bookList.setBooks(currentSize,book);

        //usedSize++
        bookList.setUsedSize(currentSize + 1);
    }
}
